US275/N92 over HELL CREEK

Map 

Facts 

Name:	US275/N92 over HELL CREEK
Structure number:	S275 18139
Location:	1W L ST INTRCHG
Purpose:	Carries highway over waterway
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	12.1 ft. [3.7 m]
Total length:	28.9 ft. [8.8 m]
Skew angle:	31°
Owner:	State Highway Agency [01]
Year built:	1958
Year reconstructed:	2000
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	MS 18 / HS 20 [5]
Number of main spans:	2
Main spans material:	Concrete [1]
Main spans design:	Culvert [19]
Deck type:	Not applicable [N]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	50,615 [as of 2008]
Truck traffic:	7% of total traffic
Channel protection:	Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:	Navigation protection not required [1]
Culvert condition:	No noticeable or noteworthy deficiencies which affect the condition of the culvert. Insignificant scrape marks caused by drift. [8]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	35.6 tons [32.4 metric tons]
Inventory rating:	23.8 tons [21.6 metric tons]
Sufficiency rating:	65.4

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	53,000 [as of 1998]
Truck traffic:	7% of total traffic
Channel protection:	Bank protection has failed. River control devices have been destroyed. Stream bed aggradation, degradation or lateral movement has changed the channel to now threaten the bridge and/or approach roadway. [3]
Culvert condition:	Any condition described in Code 4 but which is excessive in scope. Severe movement or differential setlement of the segments or loss of fill. Holes may exist in walls or slabs. Integral wingwalls nearly severed from culvert. Severe scour or erosion at curtain walls, wingwalls or pipes. Metal culverts have extreme distortion and delection in one section, extensive corrosion, or deep pitting with scattered perforations. [3]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	35.6 tons [32.4 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	24.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$2,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	46,000 [as of 1990]
Truck traffic:	5% of total traffic
Channel protection:	Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Culvert condition:	Large spalls, heavy scaling, wide cracks, considerable efflorescence or opened construction joint permitting loss of backfill. Considerable settlement or misalignment. Considerable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection throughout, extensive corrosion or deep pitting. [4]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	39.6 tons [36.0 metric tons]
Inventory rating:	18.6 tons [16.9 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	31.3
Estimated cost of work:	$28,000

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